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. To all 'whom it may comm dilated gtst-rt @met i (hijita.

JAMES BRYAN, or NEWYORKN; Y..

\ rLatemPalmare.100,595, (Imam/mh 8,1870.

IMPROVEMENT 1N PUMPS.

y The Schedule referred to-in`these Letters Patent and marking part ofthe same.

Beit known that I, J malinsA BRYAN, of New York,

jin.thc countyand State of New York, have invented a certain Improvementin Ale-Pumps; and Ido here-4 by declare that the following is a. full,clear, and exact description thereof, referencebeing had to theaccompanying drawing making a part of this specification, and to theletters of reference marked thereon.

. The said improvementfrelates `to pumps that are employed for drawingbeer, and may also be used for porter and cider and other liquors inwhich there is 'likely to bea development of acid.

When any of such liquors areleft standing in an i i -ordinarybrass-pump, the formation of verdigris is not only detrimental to healthby its contact and solubility' inthe liquid, but' the friction of thepiston within i the barrel of the pumpdetaches the poison and Ycauses itto be delivered with the `liquor in that highly concentrated form which,if drank, is correspondingly deleterious and perhaps fatal. i

The `object of my invention is to make a workingbarrel or cylinder inwhich there can be no formation vof verdigris, and to makeall theinternal fittings or working portions ofthe mechanism with which theliquid comes in contact of metal that is practically in-` ivcori-edible. For this purpose,

My inventionl consists in making the working-'cyln i der of glass, andthe `other parts that are necessarilyA aifected by rand with the`Huid/that 'is to be passed through the pump of a composition commonlyknown as white metal, and made of tin and antimony, with only suiicientcopper to harden it for the purposes for which it may be intended, andin combining the parts so made with, iron clamps and brackets, bywhichthe weight and the strain of working the pumps are entirely sustained. ii Y The details of the construction and arrangement of` the parts aremore fully described in connection with the drawing.

To enable others skilled in the arts tohwhich it appertainsto'make anduse the said invention, I will :PrOeed toA describe its construction andoperation with reference to the drawing.

The pump-cylinder at` is made of glass, with screw- `threads cut ormolded at b othvends.

, Witnesses:

. -Ot the caps which screw upon-the glasscylinder,

the bottom b is connectedwith the inlet-pipe, and is made of white metaland fitted with a similar valve.

The upper cap cis also of white metal and furnished with a similarstuffing-box and nozzle for the 4outletcoupling'. f A

The piston or plunger-box and its valve' are made ofthe same characterof metal, and are packed in the vare encased by iron clamps e, which areVsecured to the brackets f by the bolts g, that are tted with nuts onboth sides of each bracket, by means of which the position oi' the pumpmay be accurately adjusted.

The .fastenings of the brackets', the packing, and the other portions ofthepump and apparatus may be arranged in the usual manner, as the saidimproveyment only relates to the construction of the glass and metallicportions' of the pump that have been described in such a way that theymay be made of practically incorrodible material, and possess sucientstrength to be used for the purpose required.

I do not claim simply a glass pump-cylinder, nor the incorrodiblefittings, but the said invention consists in combining the pump withsuch a cylinder and fittings,

vso made with iron or other similar clamps that take the entire strain,and by which they may be suspended from Athe brackets by adjustablebolts in the manner described and illustrated in the drawing. O I claimas my invention- The ycombination of the glass cylinder with theincorrodibleittings and iron. clamps, supported on .brackets byadjustable bolts, and constructed and arranged substantially in themanner and for the purpose described. JAMES BRYAN. Y

DANI.. J. DAY, WM. lKEMBLE HALL.

